Apr 28, 2014 1:13 AM

Hi, my first thought was that this is a small jellyfish fossil but a little searching online has brought up similar looking images of coral fossils. Assuming it was a coral I'd expect to see it going through the rock which I can't so I'm still hoping it's a little jellyfish. Was found on river bank near Ammanford Carmarthenshire. Any thoughts? Would love to know more